Description

3-Octadecanoyloxypropyl Octadecanoate is a high-purity synthetic diester derived from stearic acid and propylene glycol. This compound serves as a versatile and effective non-ionic emollient and lubricant, prized for its excellent skin feel and stability in formulations. It is a critical ingredient for manufacturers in the personal care, cosmetics, and specialty chemical industries seeking to enhance product texture and performance.

Application

• Cosmetic & Personal Care Formulations: Acts as a premium emollient and skin-conditioning agent in creams, lotions, lipsticks, and sunscreens.
• Pharmaceutical Topicals: Used as a base or excipient in ointments, creams, and dermatological preparations for its smooth texture and compatibility.
• Industrial Lubricants & Release Agents: Functions as a biodegradable lubricant component and mold release agent in plastics and rubber processing.
• Textile & Fiber Processing: Employed as a softening agent and lubricant for synthetic fibers and yarns.
• Specialty Chemical Intermediate: Serves as a building block for synthesizing more complex esters and surfactants.

Basic Information

Product Name	3-Octadecanoyloxypropyl Octadecanoate
CAS No.	75537-28-9
Molecular Formula	C₃₉H₇₆O₄
Molecular Weight	621.0 g/mol
Synonyms	Propylene Glycol Distearate; PGDS; Octadecanoic acid, 1,1'-(1-methyl-1,2-ethanediyl) ester; 1,2-Propanediol distearate; Stearic acid, propylene glycol diester; Distearyl propylene glycol ester; Bis(octadecanoyloxy)propane
EINECS	Contact for details

Quality Control

Our 3-Octadecanoyloxypropyl Octadecanoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, and saponification value are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 95.0%
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	175 - 190 mg KOH/g
Melting Point	40 - 50 °C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.